:root {
    --bg: #f5f7f5;
    --surface: #ffffff;
    --text: #1c271e;
    --muted: #6a7a6b;
    --accent: #306e41;
    --border: #dde5dd;
    --serif: "Instrument Serif", Georgia, serif;
    --sans: "DM Sans", "Helvetica Neue", sans-serif;
    --mono: "DM Mono", "SF Mono", monospace;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

.ambient {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.ambient::before {
    content: "";
    position: absolute;
    top: -12%;
    left: -5%;
    width: 48%;
    height: 48%;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(50, 69, 55, 0.08) 0%,
        transparent 68%
    );
    animation: none;
}

.ambient::after {
    content: "";
    position: absolute;
    right: -8%;
    bottom: -10%;
    width: 42%;
    height: 42%;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(50, 69, 55, 0.06) 0%,
        transparent 64%
    );
    animation: none;
}

#nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 24px 56px;
    background: rgba(245, 247, 245, 0.88);
    border-bottom: 1px solid rgba(221, 229, 221, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    /* override base.css fixed positioning */
    border-bottom-color: rgba(221, 229, 221, 0.92);
    transition: none;
}

.nav-mark {
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.16em;
    color: var(--accent);
    text-decoration: none;
}

.nav-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 16px 24px;
    list-style: none;
}

.nav-list a {
    padding-bottom: 4px;
    border-bottom: 1px solid transparent;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
    transition:
        color 220ms var(--ease),
        border-color 220ms var(--ease);
}

.nav-list a:hover,
.nav-list a:focus-visible {
    color: var(--accent);
    border-bottom-color: rgba(48, 110, 65, 0.35);
    outline: none;
}

.gallery-main {
    position: relative;
    z-index: 1;
    padding: 68px 56px 96px;
}

.gallery-hero {
    padding: 24px 0 56px;
    border-bottom: 1px solid var(--border);
}

.gallery-kicker {
    margin-bottom: 18px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
}

.gallery-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    gap: 48px;
    align-items: end;
}

.gallery-title {
    font-family: var(--serif);
    font-size: clamp(52px, 9vw, 104px);
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 0.92;
    text-wrap: balance;
}

.material-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.material-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.64);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
    transition:
        transform 220ms var(--ease),
        border-color 220ms var(--ease),
        color 220ms var(--ease),
        background 220ms var(--ease);
}

.material-chip:hover,
.material-chip:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(48, 110, 65, 0.35);
    color: var(--accent);
    outline: none;
}

.material-chip[aria-current="page"] {
    background: var(--text);
    border-color: var(--text);
    color: var(--bg);
}

.gallery-section {
    padding-top: 48px;
}

.gallery-section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 40px;
}

.gallery-section-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
}

.gallery-count {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
}

.gallery-grid {
    --card-frame-width: min(100%, 29rem);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 36px 24px;
    zoom: 0.8;
}

.gallery-grid.single-column {
    max-width: 520px;
    grid-template-columns: minmax(0, 1fr);
}

.card {
    display: grid;
    align-content: start;
    color: inherit;
    text-decoration: none;
}

.card-img {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: var(--card-frame-width);
    margin: 0 auto 16px;
    padding: 0;
    border: 2px solid #000;
}

.card-img img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 700ms var(--ease);
}

.card-img img.drawing {
    object-fit: contain;
    background: #fff;
}

.card-bar {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 400ms var(--ease);
}

.card:hover .card-img img,
.card:focus-visible .card-img img {
    transform: scale(1.018);
}

.card:hover .card-bar,
.card:focus-visible .card-bar {
    transform: scaleX(1);
}

.card-title {
    width: 100%;
    max-width: var(--card-frame-width);
    margin: 0 auto 6px;
    margin-bottom: 6px;
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--text);
    transition: color 220ms var(--ease);
}

.card:hover .card-title,
.card:focus-visible .card-title {
    color: var(--accent);
}

.card-meta {
    width: 100%;
    max-width: var(--card-frame-width);
    margin: 0 auto;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.07em;
    color: var(--muted);
    line-height: 1.85;
    text-wrap: pretty;
}

.card:focus-visible {
    outline: 2px solid rgba(48, 110, 65, 0.28);
    outline-offset: 6px;
}

.card.static {
    cursor: default;
}

.card.static:hover .card-img img,
.card.static:hover .card-title {
    transform: none;
    color: var(--text);
}

.card.static:hover .card-bar {
    transform: scaleX(0);
}

.card-img.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.88),
        rgba(221, 229, 221, 0.96)
    );
    border: 1px solid rgba(48, 110, 65, 0.08);
}

.placeholder-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
    line-height: 1.9;
}

@media (max-width: 960px) {
    #nav,
    .gallery-main {
        padding-left: 28px;
        padding-right: 28px;
    }

    .gallery-main {
        padding-top: 48px;
    }

    .gallery-hero-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .nav-list {
        justify-content: flex-start;
        gap: 10px 18px;
    }

    .material-chip-row {
        gap: 10px;
    }

    .card-title {
        font-size: 20px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ── Gallery tab transitions ──────────────────────────────── */

@keyframes gallery-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gallery-fade-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-8px);
    }
}

body.gallery-leaving .gallery-main {
    animation: gallery-fade-out 200ms var(--ease) forwards;
    pointer-events: none;
}

body.gallery-entering .gallery-main {
    animation: gallery-fade-in 380ms var(--ease) both;
}